add l476 implementationl476

8 files changed, 1003 insertions, 526 deletions

diff --git a/Core/Inc/main.h b/Core/Inc/main.h
index 2f460cf..862756f 100644
--- a/Core/Inc/main.h
+++ b/Core/Inc/main.h
@@ -27,7 +27,7 @@ extern "C" {
 #endif

 

 /* Includes ------------------------------------------------------------------*/

-#include "stm32u0xx_hal.h"

+#include "stm32l4xx_hal.h"

 

 /* Private includes ----------------------------------------------------------*/

 /* USER CODE BEGIN Includes */

@@ -57,24 +57,6 @@ void Error_Handler(void);
 /* USER CODE END EFP */

 

 /* Private defines -----------------------------------------------------------*/

-#define LED_GREEN_Pin GPIO_PIN_13

-#define LED_GREEN_GPIO_Port GPIOC

-#define Joystick_Pin GPIO_PIN_2

-#define Joystick_GPIO_Port GPIOC

-#define VCP_TX_Pin GPIO_PIN_2

-#define VCP_TX_GPIO_Port GPIOA

-#define VCP_RX_Pin GPIO_PIN_3

-#define VCP_RX_GPIO_Port GPIOA

-#define LED_BLUE_Pin GPIO_PIN_5

-#define LED_BLUE_GPIO_Port GPIOA

-#define LED_RED_Pin GPIO_PIN_2

-#define LED_RED_GPIO_Port GPIOB

-#define IDLE_Pin GPIO_PIN_9

-#define IDLE_GPIO_Port GPIOD

-#define SWDIO_Pin GPIO_PIN_13

-#define SWDIO_GPIO_Port GPIOA

-#define SWCLK_Pin GPIO_PIN_14

-#define SWCLK_GPIO_Port GPIOA

 

 /* USER CODE BEGIN Private defines */

 

diff --git a/Core/Inc/stm32l4xx_hal_conf.h b/Core/Inc/stm32l4xx_hal_conf.h
new file mode 100644
index 0000000..7825646
--- /dev/null
+++ b/Core/Inc/stm32l4xx_hal_conf.h
@@ -0,0 +1,482 @@
+/* USER CODE BEGIN Header */

+/**

+  ******************************************************************************

+  * @file    stm32l4xx_hal_conf.h

+  * @author  MCD Application Team

+  * @brief   HAL configuration template file.

+  *          This file should be copied to the application folder and renamed

+  *          to stm32l4xx_hal_conf.h.

+  ******************************************************************************

+  * @attention

+  *

+  * Copyright (c) 2017 STMicroelectronics.

+  * All rights reserved.

+  *

+  * This software is licensed under terms that can be found in the LICENSE file

+  * in the root directory of this software component.

+  * If no LICENSE file comes with this software, it is provided AS-IS.

+  *

+  ******************************************************************************

+  */

+/* USER CODE END Header */

+

+/* Define to prevent recursive inclusion -------------------------------------*/

+#ifndef STM32L4xx_HAL_CONF_H

+#define STM32L4xx_HAL_CONF_H

+

+#ifdef __cplusplus

+ extern "C" {

+#endif

+

+/* Exported types ------------------------------------------------------------*/

+/* Exported constants --------------------------------------------------------*/

+

+/* ########################## Module Selection ############################## */

+/**

+  * @brief This is the list of modules to be used in the HAL driver

+  */

+#define HAL_MODULE_ENABLED

+/*#define HAL_ADC_MODULE_ENABLED   */

+/*#define HAL_CRYP_MODULE_ENABLED   */

+/*#define HAL_CAN_MODULE_ENABLED   */

+/*#define HAL_COMP_MODULE_ENABLED   */

+/*#define HAL_I2C_MODULE_ENABLED   */

+/*#define HAL_CRC_MODULE_ENABLED   */

+/*#define HAL_CRYP_MODULE_ENABLED   */

+/*#define HAL_DAC_MODULE_ENABLED   */

+/*#define HAL_DCMI_MODULE_ENABLED   */

+/*#define HAL_DMA2D_MODULE_ENABLED   */

+/*#define HAL_DFSDM_MODULE_ENABLED   */

+/*#define HAL_DSI_MODULE_ENABLED   */

+/*#define HAL_FIREWALL_MODULE_ENABLED   */

+/*#define HAL_GFXMMU_MODULE_ENABLED   */

+/*#define HAL_HCD_MODULE_ENABLED   */

+/*#define HAL_HASH_MODULE_ENABLED   */

+/*#define HAL_I2S_MODULE_ENABLED   */

+/*#define HAL_IRDA_MODULE_ENABLED   */

+/*#define HAL_IWDG_MODULE_ENABLED   */

+/*#define HAL_LTDC_MODULE_ENABLED   */

+/*#define HAL_LCD_MODULE_ENABLED   */

+/*#define HAL_LPTIM_MODULE_ENABLED   */

+/*#define HAL_MMC_MODULE_ENABLED   */

+/*#define HAL_NAND_MODULE_ENABLED   */

+/*#define HAL_NOR_MODULE_ENABLED   */

+/*#define HAL_OPAMP_MODULE_ENABLED   */

+/*#define HAL_OSPI_MODULE_ENABLED   */

+/*#define HAL_OSPI_MODULE_ENABLED   */

+/*#define HAL_PCD_MODULE_ENABLED   */

+/*#define HAL_PKA_MODULE_ENABLED   */

+/*#define HAL_QSPI_MODULE_ENABLED   */

+/*#define HAL_QSPI_MODULE_ENABLED   */

+/*#define HAL_RNG_MODULE_ENABLED   */

+/*#define HAL_RTC_MODULE_ENABLED   */

+/*#define HAL_SAI_MODULE_ENABLED   */

+/*#define HAL_SD_MODULE_ENABLED   */

+/*#define HAL_SMBUS_MODULE_ENABLED   */

+/*#define HAL_SMARTCARD_MODULE_ENABLED   */

+#define HAL_SPI_MODULE_ENABLED

+/*#define HAL_SRAM_MODULE_ENABLED   */

+/*#define HAL_SWPMI_MODULE_ENABLED   */

+/*#define HAL_TIM_MODULE_ENABLED   */

+/*#define HAL_TSC_MODULE_ENABLED   */

+#define HAL_UART_MODULE_ENABLED

+/*#define HAL_USART_MODULE_ENABLED   */

+/*#define HAL_WWDG_MODULE_ENABLED   */

+/*#define HAL_EXTI_MODULE_ENABLED   */

+/*#define HAL_PSSI_MODULE_ENABLED   */

+#define HAL_GPIO_MODULE_ENABLED

+#define HAL_EXTI_MODULE_ENABLED

+#define HAL_DMA_MODULE_ENABLED

+#define HAL_RCC_MODULE_ENABLED

+#define HAL_FLASH_MODULE_ENABLED

+#define HAL_PWR_MODULE_ENABLED

+#define HAL_CORTEX_MODULE_ENABLED

+

+/* ########################## Oscillator Values adaptation ####################*/

+/**

+  * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.

+  *        This value is used by the RCC HAL module to compute the system frequency

+  *        (when HSE is used as system clock source, directly or through the PLL).

+  */

+#if !defined  (HSE_VALUE)

+  #define HSE_VALUE    ((uint32_t)8000000U) /*!< Value of the External oscillator in Hz */

+#endif /* HSE_VALUE */

+

+#if !defined  (HSE_STARTUP_TIMEOUT)

+  #define HSE_STARTUP_TIMEOUT    ((uint32_t)100U)   /*!< Time out for HSE start up, in ms */

+#endif /* HSE_STARTUP_TIMEOUT */

+

+/**

+  * @brief Internal Multiple Speed oscillator (MSI) default value.

+  *        This value is the default MSI range value after Reset.

+  */

+#if !defined  (MSI_VALUE)

+  #define MSI_VALUE    ((uint32_t)4000000U) /*!< Value of the Internal oscillator in Hz*/

+#endif /* MSI_VALUE */

+/**

+  * @brief Internal High Speed oscillator (HSI) value.

+  *        This value is used by the RCC HAL module to compute the system frequency

+  *        (when HSI is used as system clock source, directly or through the PLL).

+  */

+#if !defined  (HSI_VALUE)

+  #define HSI_VALUE    ((uint32_t)16000000U) /*!< Value of the Internal oscillator in Hz*/

+#endif /* HSI_VALUE */

+

+/**

+  * @brief Internal High Speed oscillator (HSI48) value for USB FS, SDMMC and RNG.

+  *        This internal oscillator is mainly dedicated to provide a high precision clock to

+  *        the USB peripheral by means of a special Clock Recovery System (CRS) circuitry.

+  *        When the CRS is not used, the HSI48 RC oscillator runs on it default frequency

+  *        which is subject to manufacturing process variations.

+  */

+#if !defined  (HSI48_VALUE)

+ #define HSI48_VALUE   ((uint32_t)48000000U) /*!< Value of the Internal High Speed oscillator for USB FS/SDMMC/RNG in Hz.

+                                              The real value my vary depending on manufacturing process variations.*/

+#endif /* HSI48_VALUE */

+

+/**

+  * @brief Internal Low Speed oscillator (LSI) value.

+  */

+#if !defined  (LSI_VALUE)

+ #define LSI_VALUE  32000U       /*!< LSI Typical Value in Hz*/

+#endif /* LSI_VALUE */                      /*!< Value of the Internal Low Speed oscillator in Hz

+                                             The real value may vary depending on the variations

+                                             in voltage and temperature.*/

+

+/**

+  * @brief External Low Speed oscillator (LSE) value.

+  *        This value is used by the UART, RTC HAL module to compute the system frequency

+  */

+#if !defined  (LSE_VALUE)

+  #define LSE_VALUE    32768U /*!< Value of the External oscillator in Hz*/

+#endif /* LSE_VALUE */

+

+#if !defined  (LSE_STARTUP_TIMEOUT)

+  #define LSE_STARTUP_TIMEOUT    5000U   /*!< Time out for LSE start up, in ms */

+#endif /* HSE_STARTUP_TIMEOUT */

+

+/**

+  * @brief External clock source for SAI1 peripheral

+  *        This value is used by the RCC HAL module to compute the SAI1 & SAI2 clock source

+  *        frequency.

+  */

+#if !defined  (EXTERNAL_SAI1_CLOCK_VALUE)

+  #define EXTERNAL_SAI1_CLOCK_VALUE    2097000U /*!< Value of the SAI1 External clock source in Hz*/

+#endif /* EXTERNAL_SAI1_CLOCK_VALUE */

+

+/**

+  * @brief External clock source for SAI2 peripheral

+  *        This value is used by the RCC HAL module to compute the SAI1 & SAI2 clock source

+  *        frequency.

+  */

+#if !defined  (EXTERNAL_SAI2_CLOCK_VALUE)

+  #define EXTERNAL_SAI2_CLOCK_VALUE    2097000U /*!< Value of the SAI2 External clock source in Hz*/

+#endif /* EXTERNAL_SAI2_CLOCK_VALUE */

+

+/* Tip: To avoid modifying this file each time you need to use different HSE,

+   ===  you can define the HSE value in your toolchain compiler preprocessor. */

+

+/* ########################### System Configuration ######################### */

+/**

+  * @brief This is the HAL system configuration section

+  */

+

+#define  VDD_VALUE					  3300U /*!< Value of VDD in mv */

+#define  TICK_INT_PRIORITY            15U    /*!< tick interrupt priority */

+#define  USE_RTOS                     0U

+#define  PREFETCH_ENABLE              0U

+#define  INSTRUCTION_CACHE_ENABLE     1U

+#define  DATA_CACHE_ENABLE            1U

+

+/* ########################## Assert Selection ############################## */

+/**

+  * @brief Uncomment the line below to expanse the "assert_param" macro in the

+  *        HAL drivers code

+  */

+/* #define USE_FULL_ASSERT    1U */

+

+/* ################## Register callback feature configuration ############### */

+/**

+  * @brief Set below the peripheral configuration  to "1U" to add the support

+  *        of HAL callback registration/deregistration feature for the HAL

+  *        driver(s). This allows user application to provide specific callback

+  *        functions thanks to HAL_PPP_RegisterCallback() rather than overwriting

+  *        the default weak callback functions (see each stm32l4xx_hal_ppp.h file

+  *        for possible callback identifiers defined in HAL_PPP_CallbackIDTypeDef

+  *        for each PPP peripheral).

+  */

+#define USE_HAL_ADC_REGISTER_CALLBACKS        0U

+#define USE_HAL_CAN_REGISTER_CALLBACKS        0U

+#define USE_HAL_COMP_REGISTER_CALLBACKS       0U

+#define USE_HAL_CRYP_REGISTER_CALLBACKS       0U

+#define USE_HAL_DAC_REGISTER_CALLBACKS        0U

+#define USE_HAL_DCMI_REGISTER_CALLBACKS       0U

+#define USE_HAL_DFSDM_REGISTER_CALLBACKS      0U

+#define USE_HAL_DMA2D_REGISTER_CALLBACKS      0U

+#define USE_HAL_DSI_REGISTER_CALLBACKS        0U

+#define USE_HAL_GFXMMU_REGISTER_CALLBACKS     0U

+#define USE_HAL_HASH_REGISTER_CALLBACKS       0U

+#define USE_HAL_HCD_REGISTER_CALLBACKS        0U

+#define USE_HAL_I2C_REGISTER_CALLBACKS        0U

+#define USE_HAL_IRDA_REGISTER_CALLBACKS       0U

+#define USE_HAL_LPTIM_REGISTER_CALLBACKS      0U

+#define USE_HAL_LTDC_REGISTER_CALLBACKS       0U

+#define USE_HAL_MMC_REGISTER_CALLBACKS        0U

+#define USE_HAL_OPAMP_REGISTER_CALLBACKS      0U

+#define USE_HAL_OSPI_REGISTER_CALLBACKS       0U

+#define USE_HAL_PCD_REGISTER_CALLBACKS        0U

+#define USE_HAL_QSPI_REGISTER_CALLBACKS       0U

+#define USE_HAL_RNG_REGISTER_CALLBACKS        0U

+#define USE_HAL_RTC_REGISTER_CALLBACKS        0U

+#define USE_HAL_SAI_REGISTER_CALLBACKS        0U

+#define USE_HAL_SD_REGISTER_CALLBACKS         0U

+#define USE_HAL_SMARTCARD_REGISTER_CALLBACKS  0U

+#define USE_HAL_SMBUS_REGISTER_CALLBACKS      0U

+#define USE_HAL_SPI_REGISTER_CALLBACKS        0U

+#define USE_HAL_SWPMI_REGISTER_CALLBACKS      0U

+#define USE_HAL_TIM_REGISTER_CALLBACKS        0U

+#define USE_HAL_TSC_REGISTER_CALLBACKS        0U

+#define USE_HAL_UART_REGISTER_CALLBACKS       0U

+#define USE_HAL_USART_REGISTER_CALLBACKS      0U

+#define USE_HAL_WWDG_REGISTER_CALLBACKS       0U

+

+/* ################## SPI peripheral configuration ########################## */

+

+/* CRC FEATURE: Use to activate CRC feature inside HAL SPI Driver

+ * Activated: CRC code is present inside driver

+ * Deactivated: CRC code cleaned from driver

+ */

+

+#define USE_SPI_CRC                   0U

+

+/* Includes ------------------------------------------------------------------*/

+/**

+  * @brief Include module's header file

+  */

+

+#ifdef HAL_RCC_MODULE_ENABLED

+  #include "stm32l4xx_hal_rcc.h"

+#endif /* HAL_RCC_MODULE_ENABLED */

+

+#ifdef HAL_GPIO_MODULE_ENABLED

+  #include "stm32l4xx_hal_gpio.h"

+#endif /* HAL_GPIO_MODULE_ENABLED */

+

+#ifdef HAL_DMA_MODULE_ENABLED

+  #include "stm32l4xx_hal_dma.h"

+#endif /* HAL_DMA_MODULE_ENABLED */

+

+#ifdef HAL_DFSDM_MODULE_ENABLED

+  #include "stm32l4xx_hal_dfsdm.h"

+#endif /* HAL_DFSDM_MODULE_ENABLED */

+

+#ifdef HAL_CORTEX_MODULE_ENABLED

+  #include "stm32l4xx_hal_cortex.h"

+#endif /* HAL_CORTEX_MODULE_ENABLED */

+

+#ifdef HAL_ADC_MODULE_ENABLED

+  #include "stm32l4xx_hal_adc.h"

+#endif /* HAL_ADC_MODULE_ENABLED */

+

+#ifdef HAL_CAN_MODULE_ENABLED

+  #include "stm32l4xx_hal_can.h"

+#endif /* HAL_CAN_MODULE_ENABLED */

+

+#ifdef HAL_CAN_LEGACY_MODULE_ENABLED

+  #include "Legacy/stm32l4xx_hal_can_legacy.h"

+#endif /* HAL_CAN_LEGACY_MODULE_ENABLED */

+

+#ifdef HAL_COMP_MODULE_ENABLED

+  #include "stm32l4xx_hal_comp.h"

+#endif /* HAL_COMP_MODULE_ENABLED */

+

+#ifdef HAL_CRC_MODULE_ENABLED

+  #include "stm32l4xx_hal_crc.h"

+#endif /* HAL_CRC_MODULE_ENABLED */

+

+#ifdef HAL_CRYP_MODULE_ENABLED

+  #include "stm32l4xx_hal_cryp.h"

+#endif /* HAL_CRYP_MODULE_ENABLED */

+

+#ifdef HAL_DAC_MODULE_ENABLED

+  #include "stm32l4xx_hal_dac.h"

+#endif /* HAL_DAC_MODULE_ENABLED */

+

+#ifdef HAL_DCMI_MODULE_ENABLED

+  #include "stm32l4xx_hal_dcmi.h"

+#endif /* HAL_DCMI_MODULE_ENABLED */

+

+#ifdef HAL_DMA2D_MODULE_ENABLED

+  #include "stm32l4xx_hal_dma2d.h"

+#endif /* HAL_DMA2D_MODULE_ENABLED */

+

+#ifdef HAL_DSI_MODULE_ENABLED

+  #include "stm32l4xx_hal_dsi.h"

+#endif /* HAL_DSI_MODULE_ENABLED */

+

+#ifdef HAL_EXTI_MODULE_ENABLED

+  #include "stm32l4xx_hal_exti.h"

+#endif /* HAL_EXTI_MODULE_ENABLED */

+

+#ifdef HAL_GFXMMU_MODULE_ENABLED

+  #include "stm32l4xx_hal_gfxmmu.h"

+#endif /* HAL_GFXMMU_MODULE_ENABLED */

+

+#ifdef HAL_FIREWALL_MODULE_ENABLED

+  #include "stm32l4xx_hal_firewall.h"

+#endif /* HAL_FIREWALL_MODULE_ENABLED */

+

+#ifdef HAL_FLASH_MODULE_ENABLED

+  #include "stm32l4xx_hal_flash.h"

+#endif /* HAL_FLASH_MODULE_ENABLED */

+

+#ifdef HAL_HASH_MODULE_ENABLED

+  #include "stm32l4xx_hal_hash.h"

+#endif /* HAL_HASH_MODULE_ENABLED */

+

+#ifdef HAL_HCD_MODULE_ENABLED

+  #include "stm32l4xx_hal_hcd.h"

+#endif /* HAL_HCD_MODULE_ENABLED */

+

+#ifdef HAL_I2C_MODULE_ENABLED

+  #include "stm32l4xx_hal_i2c.h"

+#endif /* HAL_I2C_MODULE_ENABLED */

+

+#ifdef HAL_IRDA_MODULE_ENABLED

+  #include "stm32l4xx_hal_irda.h"

+#endif /* HAL_IRDA_MODULE_ENABLED */

+

+#ifdef HAL_IWDG_MODULE_ENABLED

+  #include "stm32l4xx_hal_iwdg.h"

+#endif /* HAL_IWDG_MODULE_ENABLED */

+

+#ifdef HAL_LCD_MODULE_ENABLED

+  #include "stm32l4xx_hal_lcd.h"

+#endif /* HAL_LCD_MODULE_ENABLED */

+

+#ifdef HAL_LPTIM_MODULE_ENABLED

+  #include "stm32l4xx_hal_lptim.h"

+#endif /* HAL_LPTIM_MODULE_ENABLED */

+

+#ifdef HAL_LTDC_MODULE_ENABLED

+  #include "stm32l4xx_hal_ltdc.h"

+#endif /* HAL_LTDC_MODULE_ENABLED */

+

+#ifdef HAL_MMC_MODULE_ENABLED

+  #include "stm32l4xx_hal_mmc.h"

+#endif /* HAL_MMC_MODULE_ENABLED */

+

+#ifdef HAL_NAND_MODULE_ENABLED

+  #include "stm32l4xx_hal_nand.h"

+#endif /* HAL_NAND_MODULE_ENABLED */

+

+#ifdef HAL_NOR_MODULE_ENABLED

+  #include "stm32l4xx_hal_nor.h"

+#endif /* HAL_NOR_MODULE_ENABLED */

+

+#ifdef HAL_OPAMP_MODULE_ENABLED

+  #include "stm32l4xx_hal_opamp.h"

+#endif /* HAL_OPAMP_MODULE_ENABLED */

+

+#ifdef HAL_OSPI_MODULE_ENABLED

+  #include "stm32l4xx_hal_ospi.h"

+#endif /* HAL_OSPI_MODULE_ENABLED */

+

+#ifdef HAL_PCD_MODULE_ENABLED

+  #include "stm32l4xx_hal_pcd.h"

+#endif /* HAL_PCD_MODULE_ENABLED */

+

+#ifdef HAL_PKA_MODULE_ENABLED

+  #include "stm32l4xx_hal_pka.h"

+#endif /* HAL_PKA_MODULE_ENABLED */

+

+#ifdef HAL_PSSI_MODULE_ENABLED

+  #include "stm32l4xx_hal_pssi.h"

+#endif /* HAL_PSSI_MODULE_ENABLED */

+

+#ifdef HAL_PWR_MODULE_ENABLED

+  #include "stm32l4xx_hal_pwr.h"

+#endif /* HAL_PWR_MODULE_ENABLED */

+

+#ifdef HAL_QSPI_MODULE_ENABLED

+  #include "stm32l4xx_hal_qspi.h"

+#endif /* HAL_QSPI_MODULE_ENABLED */

+

+#ifdef HAL_RNG_MODULE_ENABLED

+  #include "stm32l4xx_hal_rng.h"

+#endif /* HAL_RNG_MODULE_ENABLED */

+

+#ifdef HAL_RTC_MODULE_ENABLED

+  #include "stm32l4xx_hal_rtc.h"

+#endif /* HAL_RTC_MODULE_ENABLED */

+

+#ifdef HAL_SAI_MODULE_ENABLED

+  #include "stm32l4xx_hal_sai.h"

+#endif /* HAL_SAI_MODULE_ENABLED */

+

+#ifdef HAL_SD_MODULE_ENABLED

+  #include "stm32l4xx_hal_sd.h"

+#endif /* HAL_SD_MODULE_ENABLED */

+

+#ifdef HAL_SMARTCARD_MODULE_ENABLED

+  #include "stm32l4xx_hal_smartcard.h"

+#endif /* HAL_SMARTCARD_MODULE_ENABLED */

+

+#ifdef HAL_SMBUS_MODULE_ENABLED

+  #include "stm32l4xx_hal_smbus.h"

+#endif /* HAL_SMBUS_MODULE_ENABLED */

+

+#ifdef HAL_SPI_MODULE_ENABLED

+  #include "stm32l4xx_hal_spi.h"

+#endif /* HAL_SPI_MODULE_ENABLED */

+

+#ifdef HAL_SRAM_MODULE_ENABLED

+  #include "stm32l4xx_hal_sram.h"

+#endif /* HAL_SRAM_MODULE_ENABLED */

+

+#ifdef HAL_SWPMI_MODULE_ENABLED

+  #include "stm32l4xx_hal_swpmi.h"

+#endif /* HAL_SWPMI_MODULE_ENABLED */

+

+#ifdef HAL_TIM_MODULE_ENABLED

+  #include "stm32l4xx_hal_tim.h"

+#endif /* HAL_TIM_MODULE_ENABLED */

+

+#ifdef HAL_TSC_MODULE_ENABLED

+  #include "stm32l4xx_hal_tsc.h"

+#endif /* HAL_TSC_MODULE_ENABLED */

+

+#ifdef HAL_UART_MODULE_ENABLED

+  #include "stm32l4xx_hal_uart.h"

+#endif /* HAL_UART_MODULE_ENABLED */

+

+#ifdef HAL_USART_MODULE_ENABLED

+  #include "stm32l4xx_hal_usart.h"

+#endif /* HAL_USART_MODULE_ENABLED */

+

+#ifdef HAL_WWDG_MODULE_ENABLED

+  #include "stm32l4xx_hal_wwdg.h"

+#endif /* HAL_WWDG_MODULE_ENABLED */

+

+/* Exported macro ------------------------------------------------------------*/

+#ifdef  USE_FULL_ASSERT

+/**

+  * @brief  The assert_param macro is used for function's parameters check.

+  * @param  expr If expr is false, it calls assert_failed function

+  *         which reports the name of the source file and the source

+  *         line number of the call that failed.

+  *         If expr is true, it returns no value.

+  * @retval None

+  */

+  #define assert_param(expr) ((expr) ? (void)0U : assert_failed((uint8_t *)__FILE__, __LINE__))

+/* Exported functions ------------------------------------------------------- */

+  void assert_failed(uint8_t *file, uint32_t line);

+#else

+  #define assert_param(expr) ((void)0U)

+#endif /* USE_FULL_ASSERT */

+

+#ifdef __cplusplus

+}

+#endif

+

+#endif /* STM32L4xx_HAL_CONF_H */

diff --git a/Core/Inc/stm32u0xx_it.h b/Core/Inc/stm32l4xx_it.h
index d134079..38a714d 100644
--- a/Core/Inc/stm32u0xx_it.h
+++ b/Core/Inc/stm32l4xx_it.h
@@ -1,7 +1,7 @@
 /* USER CODE BEGIN Header */

 /**

   ******************************************************************************

-  * @file    stm32u0xx_it.h

+  * @file    stm32l4xx_it.h

   * @brief   This file contains the headers of the interrupt handlers.

   ******************************************************************************

   * @attention

@@ -18,8 +18,8 @@
 /* USER CODE END Header */

 

 /* Define to prevent recursive inclusion -------------------------------------*/

-#ifndef __STM32U0xx_IT_H

-#define __STM32U0xx_IT_H

+#ifndef __STM32L4xx_IT_H

+#define __STM32L4xx_IT_H

 

 #ifdef __cplusplus

  extern "C" {

@@ -48,11 +48,15 @@
 /* Exported functions prototypes ---------------------------------------------*/

 void NMI_Handler(void);

 void HardFault_Handler(void);

+void MemManage_Handler(void);

+void BusFault_Handler(void);

+void UsageFault_Handler(void);

 void SVC_Handler(void);

+void DebugMon_Handler(void);

 void PendSV_Handler(void);

 void SysTick_Handler(void);

-void DMA1_Channel1_IRQHandler(void);

-void DMA1_Channel2_3_IRQHandler(void);

+void DMA1_Channel2_IRQHandler(void);

+void DMA1_Channel3_IRQHandler(void);

 /* USER CODE BEGIN EFP */

 

 /* USER CODE END EFP */

@@ -61,4 +65,4 @@ void DMA1_Channel2_3_IRQHandler(void);
 }

 #endif

 

-#endif /* __STM32U0xx_IT_H */

+#endif /* __STM32L4xx_IT_H */

diff --git a/Core/Inc/stm32u0xx_hal_conf.h b/Core/Inc/stm32u0xx_hal_conf.h
deleted file mode 100644
index 66cfc34..0000000
--- a/Core/Inc/stm32u0xx_hal_conf.h
+++ /dev/null
@@ -1,338 +0,0 @@
-/* USER CODE BEGIN Header */

-/**

-  ******************************************************************************

-  * @file    stm32u0xx_hal_conf.h

-  * @author  MCD Application Team

-  * @brief   HAL configuration file.

-  ******************************************************************************

-  * @attention

-  *

-  * Copyright (c) 2023 STMicroelectronics.

-  * All rights reserved.

-  *

-  * This software is licensed under terms that can be found in the LICENSE file

-  * in the root directory of this software component.

-  * If no LICENSE file comes with this software, it is provided AS-IS.

-  *

-  ******************************************************************************

-  */

-/* USER CODE END Header */

-

-/* Define to prevent recursive inclusion -------------------------------------*/

-#ifndef __STM32U0xx_HAL_CONF_H

-#define __STM32U0xx_HAL_CONF_H

-

-#ifdef __cplusplus

- extern "C" {

-#endif

-

-/* Exported types ------------------------------------------------------------*/

-/* Exported constants --------------------------------------------------------*/

-

-/* ########################## Module Selection ############################## */

-/**

-  * @brief This is the list of modules to be used in the HAL driver

-  */

-

-#define HAL_MODULE_ENABLED

-/* #define HAL_ADC_MODULE_ENABLED   */

-/* #define HAL_COMP_MODULE_ENABLED   */

-/* #define HAL_CRC_MODULE_ENABLED   */

-/* #define HAL_CRS_MODULE_ENABLED   */

-/* #define HAL_CRYP_MODULE_ENABLED   */

-/* #define HAL_DAC_MODULE_ENABLED   */

-/* #define HAL_I2C_MODULE_ENABLED   */

-/* #define HAL_IRDA_MODULE_ENABLED   */

-/* #define HAL_IWDG_MODULE_ENABLED   */

-/* #define HAL_LCD_MODULE_ENABLED   */

-/* #define HAL_LPTIM_MODULE_ENABLED   */

-/* #define HAL_OPAMP_MODULE_ENABLED   */

-/* #define HAL_PCD_MODULE_ENABLED   */

-/* #define HAL_RNG_MODULE_ENABLED   */

-/* #define HAL_RTC_MODULE_ENABLED   */

-#define HAL_SPI_MODULE_ENABLED

-/* #define HAL_SMARTCARD_MODULE_ENABLED   */

-/* #define HAL_TIM_MODULE_ENABLED   */

-/* #define HAL_TSC_MODULE_ENABLED   */

-#define HAL_UART_MODULE_ENABLED

-/* #define HAL_USART_MODULE_ENABLED   */

-/* #define HAL_WWDG_MODULE_ENABLED   */

-#define HAL_GPIO_MODULE_ENABLED

-#define HAL_EXTI_MODULE_ENABLED

-#define HAL_DMA_MODULE_ENABLED

-#define HAL_RCC_MODULE_ENABLED

-#define HAL_FLASH_MODULE_ENABLED

-#define HAL_PWR_MODULE_ENABLED

-#define HAL_CORTEX_MODULE_ENABLED

-

-/* ########################## Oscillator Values adaptation ####################*/

-/**

-  * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.

-  *        This value is used by the RCC HAL module to compute the system frequency

-  *        (when HSE is used as system clock source, directly or through the PLL).

-  */

-#if !defined  (HSE_VALUE)

-  #define HSE_VALUE              4000000U /*!< Value of the External oscillator in Hz */

-#endif /* HSE_VALUE */

-

-#if !defined  (HSE_STARTUP_TIMEOUT)

-  #define HSE_STARTUP_TIMEOUT    100U   /*!< Time out for HSE start up, in ms */

-#endif /* HSE_STARTUP_TIMEOUT */

-

-/**

-  * @brief Internal Multiple Speed oscillator (MSI) default value.

-  *        This value is the default MSI range value after Reset.

-  */

-#if !defined  (MSI_VALUE)

-  #define MSI_VALUE              4000000U /*!< Value of the Internal oscillator in Hz*/

-#endif /* MSI_VALUE */

-

-/**

- * @brief Internal Multiple Speed oscillator (MSI) default value.

- *        This value is the default MSI range value after Reset.

- */

-#if !defined  (MSI32_VALUE)

-#define MSI32_VALUE            32000000U /*!< Value of the Internal oscillator in Hz*/

-#endif /* MSI32_VALUE */

-

-/**

-  * @brief Internal High Speed oscillator (HSI) value.

-  *        This value is used by the RCC HAL module to compute the system frequency

-  *        (when HSI is used as system clock source, directly or through the PLL).

-  */

-#if !defined  (HSI_VALUE)

-  #define HSI_VALUE              16000000U /*!< Value of the Internal oscillator in Hz*/

-#endif /* HSI_VALUE */

-

-/**

-  * @brief Internal High Speed oscillator (HSI48) value for USB FS and RNG.

-  *        This internal oscillator is mainly dedicated to provide a high precision clock to

-  *        the USB peripheral by means of a special Clock Recovery System (CRS) circuitry.

-  *        When the CRS is not used, the HSI48 RC oscillator runs on it default frequency

-  *        which is subject to manufacturing process variations.

-  */

-#if !defined  (HSI48_VALUE)

-  #define HSI48_VALUE             48000000U /*!< Value of the Internal High Speed oscillator for USB FS/RNG in Hz.

-                                               The real value my vary depending on manufacturing process variations.*/

-#endif /* HSI48_VALUE */

-

-/**

-  * @brief Internal Low Speed oscillator (LSI) value.

-  */

-#if !defined  (LSI_VALUE)

-  #define LSI_VALUE  32000U     /*!< LSI Typical Value in Hz*/

-#endif /* LSI_VALUE */                     /*!< Value of the Internal Low Speed oscillator in Hz

-                                                The real value may vary depending on the variations

-                                                in voltage and temperature.*/

-/**

-  * @brief External Low Speed oscillator (LSE) value.

-  *        This value is used by the UART, RTC HAL module to compute the system frequency

-  */

-#if !defined  (LSE_VALUE)

-  #define LSE_VALUE              32768U    /*!< Value of the External oscillator in Hz*/

-#endif /* LSE_VALUE */

-

-#if !defined  (LSE_STARTUP_TIMEOUT)

-  #define LSE_STARTUP_TIMEOUT    5000U   /*!< Time out for LSE start up, in ms */

-#endif /* LSE_STARTUP_TIMEOUT */

-

-/* Tip: To avoid modifying this file each time you need to use different HSE,

-   ===  you can define the HSE value in your toolchain compiler preprocessor. */

-

-/* ########################### System Configuration ######################### */

-/**

-  * @brief This is the HAL system configuration section

-  */

-

-#define  VDD_VALUE                    1710U /*!< Value of VDD in mv */

-#define  TICK_INT_PRIORITY            (3U)    /*!< tick interrupt priority (lowest by default) */

-#define  USE_RTOS                     0U

-#define  PREFETCH_ENABLE              0U

-#define  INSTRUCTION_CACHE_ENABLE     1U

-

-/* ########################## Assert Selection ############################## */

-/**

-  * @brief Uncomment the line below to expanse the "assert_param" macro in the

-  *        HAL drivers code

-  */

-

-/* #define USE_FULL_ASSERT    1U */

-

-/* ################## Register callback feature configuration ############### */

-/**

-  * @brief Set below the peripheral configuration  to "1U" to add the support

-  *        of HAL callback registration/unregistration feature for the HAL

-  *        driver(s). This allows user application to provide specific callback

-  *        functions thanks to HAL_PPP_RegisterCallback() rather than overwriting

-  *        the default weak callback functions (see each stm32n6xx_hal_ppp.h file

-  *        for possible callback identifiers defined in HAL_PPP_CallbackIDTypeDef

-  *        for each PPP peripheral).

-  */

-#define  USE_HAL_ADC_REGISTER_CALLBACKS        0U /* ADC register callback disabled       */

-#define  USE_HAL_CRYP_REGISTER_CALLBACKS       0U /* CRYP register callback disabled      */

-#define  USE_HAL_DAC_REGISTER_CALLBACKS        0U /* DAC register callback disabled       */

-#define  USE_HAL_I2C_REGISTER_CALLBACKS        0U /* I2C register callback disabled       */

-#define  USE_HAL_IWDG_REGISTER_CALLBACKS       0U /* IWDG register callback disabled      */

-#define  USE_HAL_IRDA_REGISTER_CALLBACKS       0U /* IRDA register callback disabled      */

-#define  USE_HAL_LPTIM_REGISTER_CALLBACKS      0U /* LPTIM register callback disabled     */

-#define  USE_HAL_LCD_REGISTER_CALLBACKS        0U /* LCD register callback disabled      */

-#define  USE_HAL_PCD_REGISTER_CALLBACKS        0U /* PCD register callback disabled       */

-#define  USE_HAL_RNG_REGISTER_CALLBACKS        0U /* RNG register callback disabled       */

-#define  USE_HAL_RTC_REGISTER_CALLBACKS        0U /* RTC register callback disabled       */

-#define  USE_HAL_SMARTCARD_REGISTER_CALLBACKS  0U /* SMARTCARD register callback disabled */

-#define  USE_HAL_SPI_REGISTER_CALLBACKS        0U /* SPI register callback disabled       */

-#define  USE_HAL_TIM_REGISTER_CALLBACKS        0U /* TIM register callback disabled       */

-#define  USE_HAL_UART_REGISTER_CALLBACKS       0U /* UART register callback disabled      */

-#define  USE_HAL_USART_REGISTER_CALLBACKS      0U /* USART register callback disabled     */

-#define  USE_HAL_WWDG_REGISTER_CALLBACKS       0U /* WWDG register callback disabled      */

-

-/* Includes ------------------------------------------------------------------*/

-/**

-  * @brief Include module's header file

-  */

-

-#ifdef HAL_RCC_MODULE_ENABLED

-#include "stm32u0xx_hal_rcc.h"

-#endif /* HAL_RCC_MODULE_ENABLED */

-

-#ifdef HAL_GPIO_MODULE_ENABLED

-#include "stm32u0xx_hal_gpio.h"

-#endif /* HAL_GPIO_MODULE_ENABLED */

-

-#ifdef HAL_DMA_MODULE_ENABLED

-#include "stm32u0xx_hal_dma.h"

-#endif /* HAL_DMA_MODULE_ENABLED */

-

-#ifdef HAL_CORTEX_MODULE_ENABLED

-#include "stm32u0xx_hal_cortex.h"

-#endif /* HAL_CORTEX_MODULE_ENABLED */

-

-#ifdef HAL_ADC_MODULE_ENABLED

-#include "stm32u0xx_hal_adc.h"

-#include "stm32u0xx_hal_adc_ex.h"

-#endif /* HAL_ADC_MODULE_ENABLED */

-

-#ifdef HAL_COMP_MODULE_ENABLED

-#include "stm32u0xx_hal_comp.h"

-#endif /* HAL_COMP_MODULE_ENABLED */

-

-#ifdef HAL_CRC_MODULE_ENABLED

-#include "stm32u0xx_hal_crc.h"

-#endif /* HAL_CRC_MODULE_ENABLED */

-

-#ifdef HAL_CRS_MODULE_ENABLED

-#include "stm32u0xx_ll_crs.h"

-#endif /* HAL_CRS_MODULE_ENABLED */

-

-#ifdef HAL_CRYP_MODULE_ENABLED

-#include "stm32u0xx_hal_cryp.h"

-#endif /* HAL_CRYP_MODULE_ENABLED */

-

-#ifdef HAL_DAC_MODULE_ENABLED

-#include "stm32u0xx_hal_dac.h"

-#endif /* HAL_DAC_MODULE_ENABLED */

-

-#ifdef HAL_EXTI_MODULE_ENABLED

-#include "stm32u0xx_hal_exti.h"

-#endif /* HAL_EXTI_MODULE_ENABLED */

-

-#ifdef HAL_FLASH_MODULE_ENABLED

-#include "stm32u0xx_hal_flash.h"

-#endif /* HAL_FLASH_MODULE_ENABLED */

-

-#ifdef HAL_I2C_MODULE_ENABLED

-#include "stm32u0xx_hal_i2c.h"

-#endif /* HAL_I2C_MODULE_ENABLED */

-

-#ifdef HAL_IWDG_MODULE_ENABLED

-#include "stm32u0xx_hal_iwdg.h"

-#endif /* HAL_IWDG_MODULE_ENABLED */

-

-#ifdef HAL_LPTIM_MODULE_ENABLED

-#include "stm32u0xx_hal_lptim.h"

-#endif /* HAL_LPTIM_MODULE_ENABLED */

-

-#ifdef HAL_LCD_MODULE_ENABLED

-#include "stm32u0xx_hal_lcd.h"

-#endif /* HAL_LTDC_MODULE_ENABLED */

-

-#ifdef HAL_OPAMP_MODULE_ENABLED

-#include "stm32u0xx_hal_opamp.h"

-#endif /* HAL_OPAMP_MODULE_ENABLED */

-

-#ifdef HAL_PWR_MODULE_ENABLED

-#include "stm32u0xx_hal_pwr.h"

-#endif /* HAL_PWR_MODULE_ENABLED */

-

-#ifdef HAL_RNG_MODULE_ENABLED

-#include "stm32u0xx_hal_rng.h"

-#endif /* HAL_RNG_MODULE_ENABLED */

-

-#ifdef HAL_RTC_MODULE_ENABLED

-#include "stm32u0xx_hal_rtc.h"

-#endif /* HAL_RTC_MODULE_ENABLED */

-

-#ifdef HAL_SPI_MODULE_ENABLED

-#include "stm32u0xx_hal_spi.h"

-#endif /* HAL_SPI_MODULE_ENABLED */

-

-#ifdef HAL_TIM_MODULE_ENABLED

-#include "stm32u0xx_hal_tim.h"

-#endif /* HAL_TIM_MODULE_ENABLED */

-

-#ifdef HAL_TSC_MODULE_ENABLED

-#include "stm32u0xx_ll_system.h"

-#include "stm32u0xx_hal_tsc.h"

-#endif /* HAL_TSC_MODULE_ENABLED */

-

-#ifdef HAL_UART_MODULE_ENABLED

-#include "stm32u0xx_hal_uart.h"

-#endif /* HAL_UART_MODULE_ENABLED */

-

-#ifdef HAL_USART_MODULE_ENABLED

-#include "stm32u0xx_hal_usart.h"

-#endif /* HAL_USART_MODULE_ENABLED */

-

-#ifdef HAL_IRDA_MODULE_ENABLED

-#include "stm32u0xx_hal_irda.h"

-#endif /* HAL_IRDA_MODULE_ENABLED */

-

-#ifdef HAL_SMARTCARD_MODULE_ENABLED

-#include "stm32u0xx_hal_smartcard.h"

-#endif /* HAL_SMARTCARD_MODULE_ENABLED */

-

-#ifdef HAL_WWDG_MODULE_ENABLED

-#include "stm32u0xx_hal_wwdg.h"

-#endif /* HAL_WWDG_MODULE_ENABLED */

-

-#ifdef HAL_LCD_MODULE_ENABLED

-#include "stm32u0xx_hal_lcd.h"

-#endif /* HAL_LCD_MODULE_ENABLED */

-

-#ifdef HAL_PCD_MODULE_ENABLED

-#include "stm32u0xx_hal_pcd.h"

-#endif /* HAL_PCD_MODULE_ENABLED */

-

-/* Exported macro ------------------------------------------------------------*/

-#ifdef  USE_FULL_ASSERT

-/**

-  * @brief  The assert_param macro is used for function's parameters check.

-  * @param  expr: If expr is false, it calls assert_failed function

-  *         which reports the name of the source file and the source

-  *         line number of the call that failed.

-  *         If expr is true, it returns no value.

-  * @retval None

-  */

-  #define assert_param(expr) ((expr) ? (void)0U : assert_failed((uint8_t *)__FILE__, __LINE__))

-/* Exported functions ------------------------------------------------------- */

-  void assert_failed(uint8_t *file, uint32_t line);

-#else

-  #define assert_param(expr) ((void)0U)

-#endif /* USE_FULL_ASSERT */

-

-#ifdef __cplusplus

-}

-#endif

-

-#endif /* __STM32U0xx_HAL_CONF_H */

-

diff --git a/Core/Src/main.c b/Core/Src/main.c
index ed49703..3aec32e 100644
--- a/Core/Src/main.c
+++ b/Core/Src/main.c
@@ -22,7 +22,7 @@
 /* Private includes ----------------------------------------------------------*/

 /* USER CODE BEGIN Includes */

 #include <stdio.h>

-#include <qfplib-port.h>

+#include <math.h>

 /* USER CODE END Includes */

 

 /* Private typedef -----------------------------------------------------------*/

@@ -46,7 +46,6 @@ typedef uint32_t sample_t;
 /* USER CODE END PM */

 

 /* Private variables ---------------------------------------------------------*/

-

 SPI_HandleTypeDef hspi1;

 DMA_HandleTypeDef hdma_spi1_rx;

 DMA_HandleTypeDef hdma_spi1_tx;

@@ -62,7 +61,7 @@ static uint8_t I2S_Receive_Buffer[SAMPLE_COUNT * 2 * sizeof(sample_t)];
 float ln10;

 float MIC_REF_AMPL;

 

-static int64_t DB_Sum_Squares = 0.f;

+static float DB_Sum_Squares = 0.f;

 static int DB_Count = 0;

 /* USER CODE END PV */

 

@@ -97,9 +96,9 @@ int __io_putchar(int ch)
 __RAM_FUNC

 void fvar_init(void)

 {

-  ln10 = qfp_fln(10.f);

-  MIC_REF_AMPL = qfp_fmul(qfp_int2float((1u << (MIC_BITS - 2)) - 1),

-    qfp_fpow(10.f, MIC_SENSITIVITY / 20.f));

+  ln10 = logf(10.f);

+  MIC_REF_AMPL = (float)((1u << (MIC_BITS - 2)) - 1) *

+    powf(10.f, MIC_SENSITIVITY / 20.f);

 }

 /* USER CODE END 0 */

 

@@ -168,16 +167,25 @@ void SystemClock_Config(void)
 

   /** Configure the main internal regulator output voltage

   */

-  HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);

+  if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE2) != HAL_OK)

+  {

+    Error_Handler();

+  }

 

   /** Initializes the RCC Oscillators according to the specified parameters

   * in the RCC_OscInitTypeDef structure.

   */

   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;

   RCC_OscInitStruct.MSIState = RCC_MSI_ON;

-  RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;

-  RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_9;

-  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;

+  RCC_OscInitStruct.MSICalibrationValue = 0;

+  RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_6;

+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;

+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;

+  RCC_OscInitStruct.PLL.PLLM = 1;

+  RCC_OscInitStruct.PLL.PLLN = 12;

+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;

+  RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;

+  RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV8;

   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)

   {

     Error_Handler();

@@ -186,10 +194,11 @@ void SystemClock_Config(void)
   /** Initializes the CPU, AHB and APB buses clocks

   */

   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK

-                              |RCC_CLOCKTYPE_PCLK1;

-  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_MSI;

+                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;

+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;

   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;

-  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;

+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;

+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

 

   if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)

   {

@@ -259,26 +268,13 @@ static void MX_USART2_UART_Init(void)
   huart2.Init.Parity = UART_PARITY_NONE;

   huart2.Init.Mode = UART_MODE_TX_RX;

   huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;

-  huart2.Init.OverSampling = UART_OVERSAMPLING_8;

+  huart2.Init.OverSampling = UART_OVERSAMPLING_16;

   huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;

-  huart2.Init.ClockPrescaler = UART_PRESCALER_DIV1;

   huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;

   if (HAL_UART_Init(&huart2) != HAL_OK)

   {

     Error_Handler();

   }

-  if (HAL_UARTEx_SetTxFifoThreshold(&huart2, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)

-  {

-    Error_Handler();

-  }

-  if (HAL_UARTEx_SetRxFifoThreshold(&huart2, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)

-  {

-    Error_Handler();

-  }

-  if (HAL_UARTEx_DisableFifoMode(&huart2) != HAL_OK)

-  {

-    Error_Handler();

-  }

   /* USER CODE BEGIN USART2_Init 2 */

 

   /* USER CODE END USART2_Init 2 */

@@ -295,12 +291,12 @@ static void MX_DMA_Init(void)
   __HAL_RCC_DMA1_CLK_ENABLE();

 

   /* DMA interrupt init */

-  /* DMA1_Channel1_IRQn interrupt configuration */

-  HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0);

-  HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);

-  /* DMA1_Channel2_3_IRQn interrupt configuration */

-  HAL_NVIC_SetPriority(DMA1_Channel2_3_IRQn, 0, 0);

-  HAL_NVIC_EnableIRQ(DMA1_Channel2_3_IRQn);

+  /* DMA1_Channel2_IRQn interrupt configuration */

+  HAL_NVIC_SetPriority(DMA1_Channel2_IRQn, 0, 0);

+  HAL_NVIC_EnableIRQ(DMA1_Channel2_IRQn);

+  /* DMA1_Channel3_IRQn interrupt configuration */

+  HAL_NVIC_SetPriority(DMA1_Channel3_IRQn, 0, 0);

+  HAL_NVIC_EnableIRQ(DMA1_Channel3_IRQn);

 

 }

 

@@ -317,55 +313,56 @@ static void MX_GPIO_Init(void)
 

   /* GPIO Ports Clock Enable */

   __HAL_RCC_GPIOC_CLK_ENABLE();

+  __HAL_RCC_GPIOH_CLK_ENABLE();

   __HAL_RCC_GPIOA_CLK_ENABLE();

   __HAL_RCC_GPIOB_CLK_ENABLE();

   __HAL_RCC_GPIOD_CLK_ENABLE();

 

-  /*Configure GPIO pin Output Level */

-  HAL_GPIO_WritePin(LED_GREEN_GPIO_Port, LED_GREEN_Pin, GPIO_PIN_RESET);

-

-  /*Configure GPIO pin Output Level */

-  HAL_GPIO_WritePin(LED_BLUE_GPIO_Port, LED_BLUE_Pin, GPIO_PIN_RESET);

-

-  /*Configure GPIO pin Output Level */

-  HAL_GPIO_WritePin(LED_RED_GPIO_Port, LED_RED_Pin, GPIO_PIN_RESET);

-

-  /*Configure GPIO pin Output Level */

-  HAL_GPIO_WritePin(IDLE_GPIO_Port, IDLE_Pin, GPIO_PIN_SET);

-

-  /*Configure GPIO pin : LED_GREEN_Pin */

-  GPIO_InitStruct.Pin = LED_GREEN_Pin;

-  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;

+  /*Configure GPIO pins : PC13 PC14 PC15 PC0

+                           PC1 PC2 PC3 PC4

+                           PC5 PC6 PC7 PC8

+                           PC9 PC10 PC11 PC12 */

+  GPIO_InitStruct.Pin = GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15|GPIO_PIN_0

+                          |GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4

+                          |GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8

+                          |GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12;

+  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;

   GPIO_InitStruct.Pull = GPIO_NOPULL;

-  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;

-  HAL_GPIO_Init(LED_GREEN_GPIO_Port, &GPIO_InitStruct);

+  HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

 

-  /*Configure GPIO pin : Joystick_Pin */

-  GPIO_InitStruct.Pin = Joystick_Pin;

+  /*Configure GPIO pins : PH0 PH1 */

+  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;

   GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;

   GPIO_InitStruct.Pull = GPIO_NOPULL;

-  HAL_GPIO_Init(Joystick_GPIO_Port, &GPIO_InitStruct);

-

-  /*Configure GPIO pin : LED_BLUE_Pin */

-  GPIO_InitStruct.Pin = LED_BLUE_Pin;

-  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;

+  HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);

+

+  /*Configure GPIO pins : PA0 PA1 PA4 PA5

+                           PA6 PA7 PA8 PA9

+                           PA10 PA11 PA12 PA15 */

+  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5

+                          |GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9

+                          |GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_15;

+  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;

   GPIO_InitStruct.Pull = GPIO_NOPULL;

-  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;

-  HAL_GPIO_Init(LED_BLUE_GPIO_Port, &GPIO_InitStruct);

-

-  /*Configure GPIO pin : LED_RED_Pin */

-  GPIO_InitStruct.Pin = LED_RED_Pin;

-  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;

+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

+

+  /*Configure GPIO pins : PB0 PB1 PB2 PB10

+                           PB11 PB12 PB13 PB14

+                           PB15 PB6 PB7 PB8

+                           PB9 */

+  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_10

+                          |GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14

+                          |GPIO_PIN_15|GPIO_PIN_6|GPIO_PIN_7|GPIO_PIN_8

+                          |GPIO_PIN_9;

+  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;

   GPIO_InitStruct.Pull = GPIO_NOPULL;

-  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;

-  HAL_GPIO_Init(LED_RED_GPIO_Port, &GPIO_InitStruct);

+  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

 

-  /*Configure GPIO pin : IDLE_Pin */

-  GPIO_InitStruct.Pin = IDLE_Pin;

-  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;

+  /*Configure GPIO pin : PD2 */

+  GPIO_InitStruct.Pin = GPIO_PIN_2;

+  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;

   GPIO_InitStruct.Pull = GPIO_NOPULL;

-  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_MEDIUM;

-  HAL_GPIO_Init(IDLE_GPIO_Port, &GPIO_InitStruct);

+  HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);

 

 /* USER CODE BEGIN MX_GPIO_Init_2 */

 /* USER CODE END MX_GPIO_Init_2 */

@@ -449,67 +446,28 @@ error :
   return errorcode;

 }

 

-#define BITO (10)

-

-__RAM_FUNC

-__attribute__((naked))

-int64_t lmul(int64_t a, int64_t b)

-{

-    asm(

-"	push	{r4, lr}\n"

-"	mul	r1, r2\n"

-"	mul	r3, r0\n"

-"	add	r1, r3\n"

-

-"	lsr	r3, r0, #16\n"

-"	lsr	r4, r2, #16\n"

-"	mul	r3, r4\n"

-"	add	r1, r3\n"

-

-"	lsr	r3, r0, #16\n"

-"	uxth	r0, r0\n"

-"	uxth	r2, r2\n"

-"	mul	r3, r2\n"

-"	mul	r4, r0\n"

-"	mul	r0, r2\n"

-

-"	mov	r2, #0\n"

-"	add	r3, r4\n"

-"	adc	r2, r2\n"

-"	lsl	r2, #16\n"

-"	add	r1, r2\n"

-

-"	lsl	r2, r3, #16\n"

-"	lsr	r3, #16\n"

-"	add	r0, r2\n"

-"	adc	r1, r3\n"

-"	pop	{r4, pc}\n"

-    );

-}

-

 __RAM_FUNC

-static inline void process(int64_t in_div4)

+static inline void process(float in_div4)

 {

-    static int64_t z[4] = {0, 0, 0, 0};

+    static float z[4] = {0.f, 0.f, 0.f, 0.f};

 

-    in_div4 <<= BITO;

-    int64_t out1 = (in_div4 + z[0]);

-    z[0] = ((out1 * 0x43f /*1.062f*/) >> BITO) + z[1];

-    z[1] = ((out1 * -0x8f /*-0.14f*/) >> BITO) - in_div4;

+    float out1 = in_div4 + z[0];

+    z[0] = out1 * 1.062f + z[1];

+    z[1] = out1 * -0.14f - in_div4;

 

-    int64_t out2 = (out1 + z[2]);

+    float out2 = out1 + z[2];

     z[2] = out1;

 

-    int64_t out3 = (out2 + z[3]);

-    z[3] = ((out3 * 0x3f1 /*0.985f*/) >> BITO) - out2;

+    float out3 = out2 + z[3];

+    z[3] = out3 * 0.985f - out2;

 

-    DB_Sum_Squares += lmul(out3, out3) >> BITO;

+    DB_Sum_Squares += out3 * out3;

 }

 

 __RAM_FUNC

 static void processSampleBlock(sample_t *sample)

 {

-  IDLE_GPIO_Port->ODR ^= IDLE_Pin;

+  //IDLE_GPIO_Port->ODR ^= IDLE_Pin;

 

   for (int i = 0; i < SAMPLE_COUNT; i += 2) {

     // 18-bit sample comes in as big-endian with right padding.

@@ -521,16 +479,15 @@ static void processSampleBlock(sample_t *sample)
   DB_Count += SAMPLE_COUNT / 2;

 

   if (DB_Count >= SAMPLES_PER_REPORT) {

-    float rms = qfp_fsqrt(qfp_int2float((DB_Sum_Squares >> BITO) / DB_Count));

-    float db = qfp_fadd(qfp_fmul(qfp_flog10(qfp_fdiv(rms, MIC_REF_AMPL)), 20.f),

-        MIC_OFFSET_DB + MIC_REF_DB);

+    float rms = sqrtf(DB_Sum_Squares / DB_Count);

+    float db = 20.f * log10f(rms / MIC_REF_AMPL) + MIC_OFFSET_DB + MIC_REF_DB;

     DB_Sum_Squares = 0.f;

     DB_Count = 0;

 

-    printf("%d dB\r\n", qfp_float2int(db));

+    printf("%d dB\r\n", (int)db);

   }

 

-  IDLE_GPIO_Port->ODR ^= IDLE_Pin;

+  //IDLE_GPIO_Port->ODR ^= IDLE_Pin;

 }

 

 void SPI_DMATransmitReceiveCplt(DMA_HandleTypeDef *hdma)

diff --git a/Core/Src/stm32u0xx_hal_msp.c b/Core/Src/stm32l4xx_hal_msp.c
index 4eb7deb..18e8512 100644
--- a/Core/Src/stm32u0xx_hal_msp.c
+++ b/Core/Src/stm32l4xx_hal_msp.c
@@ -1,7 +1,7 @@
 /* USER CODE BEGIN Header */

 /**

   ******************************************************************************

-  * @file         stm32u0xx_hal_msp.c

+  * @file         stm32l4xx_hal_msp.c

   * @brief        This file provides code for the MSP Initialization

   *               and de-Initialization codes.

   ******************************************************************************

@@ -70,8 +70,8 @@ void HAL_MspInit(void)
 

   /* USER CODE END MspInit 0 */

 

-  __HAL_RCC_PWR_CLK_ENABLE();

   __HAL_RCC_SYSCFG_CLK_ENABLE();

+  __HAL_RCC_PWR_CLK_ENABLE();

 

   /* System interrupt init*/

 

@@ -97,23 +97,23 @@ void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
     /* Peripheral clock enable */

     __HAL_RCC_SPI1_CLK_ENABLE();

 

-    __HAL_RCC_GPIOA_CLK_ENABLE();

+    __HAL_RCC_GPIOB_CLK_ENABLE();

     /**SPI1 GPIO Configuration

-    PA1     ------> SPI1_SCK

-    PA6     ------> SPI1_MISO

-    PA7     ------> SPI1_MOSI

+    PB3 (JTDO-TRACESWO)     ------> SPI1_SCK

+    PB4 (NJTRST)     ------> SPI1_MISO

+    PB5     ------> SPI1_MOSI

     */

-    GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_6|GPIO_PIN_7;

+    GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5;

     GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;

     GPIO_InitStruct.Pull = GPIO_NOPULL;

-    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;

+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;

     GPIO_InitStruct.Alternate = GPIO_AF5_SPI1;

-    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

+    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

 

     /* SPI1 DMA Init */

     /* SPI1_RX Init */

-    hdma_spi1_rx.Instance = DMA1_Channel1;

-    hdma_spi1_rx.Init.Request = DMA_REQUEST_SPI1_RX;

+    hdma_spi1_rx.Instance = DMA1_Channel2;

+    hdma_spi1_rx.Init.Request = DMA_REQUEST_1;

     hdma_spi1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;

     hdma_spi1_rx.Init.PeriphInc = DMA_PINC_DISABLE;

     hdma_spi1_rx.Init.MemInc = DMA_MINC_ENABLE;

@@ -129,8 +129,8 @@ void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
     __HAL_LINKDMA(hspi,hdmarx,hdma_spi1_rx);

 

     /* SPI1_TX Init */

-    hdma_spi1_tx.Instance = DMA1_Channel2;

-    hdma_spi1_tx.Init.Request = DMA_REQUEST_SPI1_TX;

+    hdma_spi1_tx.Instance = DMA1_Channel3;

+    hdma_spi1_tx.Init.Request = DMA_REQUEST_1;

     hdma_spi1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;

     hdma_spi1_tx.Init.PeriphInc = DMA_PINC_DISABLE;

     hdma_spi1_tx.Init.MemInc = DMA_MINC_ENABLE;

@@ -170,11 +170,11 @@ void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi)
     __HAL_RCC_SPI1_CLK_DISABLE();

 

     /**SPI1 GPIO Configuration

-    PA1     ------> SPI1_SCK

-    PA6     ------> SPI1_MISO

-    PA7     ------> SPI1_MOSI

+    PB3 (JTDO-TRACESWO)     ------> SPI1_SCK

+    PB4 (NJTRST)     ------> SPI1_MISO

+    PB5     ------> SPI1_MOSI

     */

-    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_1|GPIO_PIN_6|GPIO_PIN_7);

+    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5);

 

     /* SPI1 DMA DeInit */

     HAL_DMA_DeInit(hspi->hdmarx);

@@ -202,7 +202,7 @@ void HAL_UART_MspInit(UART_HandleTypeDef* huart)
 

   /* USER CODE END USART2_MspInit 0 */

 

-  /** Initializes the peripherals clocks

+  /** Initializes the peripherals clock

   */

     PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2;

     PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;

@@ -219,10 +219,10 @@ void HAL_UART_MspInit(UART_HandleTypeDef* huart)
     PA2     ------> USART2_TX

     PA3     ------> USART2_RX

     */

-    GPIO_InitStruct.Pin = VCP_TX_Pin|VCP_RX_Pin;

+    GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;

     GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;

     GPIO_InitStruct.Pull = GPIO_NOPULL;

-    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;

+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;

     GPIO_InitStruct.Alternate = GPIO_AF7_USART2;

     HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

 

@@ -254,7 +254,7 @@ void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
     PA2     ------> USART2_TX

     PA3     ------> USART2_RX

     */

-    HAL_GPIO_DeInit(GPIOA, VCP_TX_Pin|VCP_RX_Pin);

+    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2|GPIO_PIN_3);

 

   /* USER CODE BEGIN USART2_MspDeInit 1 */

 

diff --git a/Core/Src/stm32u0xx_it.c b/Core/Src/stm32l4xx_it.c
index 78ec492..8905566 100644
--- a/Core/Src/stm32u0xx_it.c
+++ b/Core/Src/stm32l4xx_it.c
@@ -1,7 +1,7 @@
 /* USER CODE BEGIN Header */

 /**

   ******************************************************************************

-  * @file    stm32u0xx_it.c

+  * @file    stm32l4xx_it.c

   * @brief   Interrupt Service Routines.

   ******************************************************************************

   * @attention

@@ -19,7 +19,7 @@
 

 /* Includes ------------------------------------------------------------------*/

 #include "main.h"

-#include "stm32u0xx_it.h"

+#include "stm32l4xx_it.h"

 /* Private includes ----------------------------------------------------------*/

 /* USER CODE BEGIN Includes */

 /* USER CODE END Includes */

@@ -62,7 +62,7 @@ extern DMA_HandleTypeDef hdma_spi1_tx;
 /* USER CODE END EV */

 

 /******************************************************************************/

-/*           Cortex Processor Interruption and Exception Handlers          */

+/*           Cortex-M4 Processor Interruption and Exception Handlers          */

 /******************************************************************************/

 /**

   * @brief This function handles Non maskable interrupt.

@@ -95,7 +95,52 @@ void HardFault_Handler(void)
 }

 

 /**

-  * @brief This function handles System service call via SVC instruction.

+  * @brief This function handles Memory management fault.

+  */

+void MemManage_Handler(void)

+{

+  /* USER CODE BEGIN MemoryManagement_IRQn 0 */

+

+  /* USER CODE END MemoryManagement_IRQn 0 */

+  while (1)

+  {

+    /* USER CODE BEGIN W1_MemoryManagement_IRQn 0 */

+    /* USER CODE END W1_MemoryManagement_IRQn 0 */

+  }

+}

+

+/**

+  * @brief This function handles Prefetch fault, memory access fault.

+  */

+void BusFault_Handler(void)

+{

+  /* USER CODE BEGIN BusFault_IRQn 0 */

+

+  /* USER CODE END BusFault_IRQn 0 */

+  while (1)

+  {

+    /* USER CODE BEGIN W1_BusFault_IRQn 0 */

+    /* USER CODE END W1_BusFault_IRQn 0 */

+  }

+}

+

+/**

+  * @brief This function handles Undefined instruction or illegal state.

+  */

+void UsageFault_Handler(void)

+{

+  /* USER CODE BEGIN UsageFault_IRQn 0 */

+

+  /* USER CODE END UsageFault_IRQn 0 */

+  while (1)

+  {

+    /* USER CODE BEGIN W1_UsageFault_IRQn 0 */

+    /* USER CODE END W1_UsageFault_IRQn 0 */

+  }

+}

+

+/**

+  * @brief This function handles System service call via SWI instruction.

   */

 void SVC_Handler(void)

 {

@@ -108,6 +153,19 @@ void SVC_Handler(void)
 }

 

 /**

+  * @brief This function handles Debug monitor.

+  */

+void DebugMon_Handler(void)

+{

+  /* USER CODE BEGIN DebugMonitor_IRQn 0 */

+

+  /* USER CODE END DebugMonitor_IRQn 0 */

+  /* USER CODE BEGIN DebugMonitor_IRQn 1 */

+

+  /* USER CODE END DebugMonitor_IRQn 1 */

+}

+

+/**

   * @brief This function handles Pendable request for system service.

   */

 void PendSV_Handler(void)

@@ -135,38 +193,38 @@ void SysTick_Handler(void)
 }

 

 /******************************************************************************/

-/* STM32U0xx Peripheral Interrupt Handlers                                    */

+/* STM32L4xx Peripheral Interrupt Handlers                                    */

 /* Add here the Interrupt Handlers for the used peripherals.                  */

 /* For the available peripheral interrupt handler names,                      */

-/* please refer to the startup file (startup_stm32u0xx.s).                    */

+/* please refer to the startup file (startup_stm32l4xx.s).                    */

 /******************************************************************************/

 

 /**

-  * @brief This function handles DMA1 channel 1 interrupt.

+  * @brief This function handles DMA1 channel2 global interrupt.

   */

-void DMA1_Channel1_IRQHandler(void)

+void DMA1_Channel2_IRQHandler(void)

 {

-  /* USER CODE BEGIN DMA1_Channel1_IRQn 0 */

+  /* USER CODE BEGIN DMA1_Channel2_IRQn 0 */

 

-  /* USER CODE END DMA1_Channel1_IRQn 0 */

+  /* USER CODE END DMA1_Channel2_IRQn 0 */

   HAL_DMA_IRQHandler(&hdma_spi1_rx);

-  /* USER CODE BEGIN DMA1_Channel1_IRQn 1 */

+  /* USER CODE BEGIN DMA1_Channel2_IRQn 1 */

 

-  /* USER CODE END DMA1_Channel1_IRQn 1 */

+  /* USER CODE END DMA1_Channel2_IRQn 1 */

 }

 

 /**

-  * @brief This function handles DMA1 channel 2 and channel 3 interrupts.

+  * @brief This function handles DMA1 channel3 global interrupt.

   */

-void DMA1_Channel2_3_IRQHandler(void)

+void DMA1_Channel3_IRQHandler(void)

 {

-  /* USER CODE BEGIN DMA1_Channel2_3_IRQn 0 */

+  /* USER CODE BEGIN DMA1_Channel3_IRQn 0 */

 

-  /* USER CODE END DMA1_Channel2_3_IRQn 0 */

+  /* USER CODE END DMA1_Channel3_IRQn 0 */

   HAL_DMA_IRQHandler(&hdma_spi1_tx);

-  /* USER CODE BEGIN DMA1_Channel2_3_IRQn 1 */

+  /* USER CODE BEGIN DMA1_Channel3_IRQn 1 */

 

-  /* USER CODE END DMA1_Channel2_3_IRQn 1 */

+  /* USER CODE END DMA1_Channel3_IRQn 1 */

 }

 

 /* USER CODE BEGIN 1 */

diff --git a/Core/Src/system_stm32l4xx.c b/Core/Src/system_stm32l4xx.c
new file mode 100644
index 0000000..be9cfee
--- /dev/null
+++ b/Core/Src/system_stm32l4xx.c
@@ -0,0 +1,332 @@
+/**
+  ******************************************************************************
+  * @file    system_stm32l4xx.c
+  * @author  MCD Application Team
+  * @brief   CMSIS Cortex-M4 Device Peripheral Access Layer System Source File
+  *
+  *   This file provides two functions and one global variable to be called from
+  *   user application:
+  *      - SystemInit(): This function is called at startup just after reset and
+  *                      before branch to main program. This call is made inside
+  *                      the "startup_stm32l4xx.s" file.
+  *
+  *      - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
+  *                                  by the user application to setup the SysTick
+  *                                  timer or configure other parameters.
+  *
+  *      - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
+  *                                 be called whenever the core clock is changed
+  *                                 during program execution.
+  *
+  *   After each device reset the MSI (4 MHz) is used as system clock source.
+  *   Then SystemInit() function is called, in "startup_stm32l4xx.s" file, to
+  *   configure the system clock before to branch to main program.
+  *
+  *   This file configures the system clock as follows:
+  *=============================================================================
+  *-----------------------------------------------------------------------------
+  *        System Clock source                    | MSI
+  *-----------------------------------------------------------------------------
+  *        SYSCLK(Hz)                             | 4000000
+  *-----------------------------------------------------------------------------
+  *        HCLK(Hz)                               | 4000000
+  *-----------------------------------------------------------------------------
+  *        AHB Prescaler                          | 1
+  *-----------------------------------------------------------------------------
+  *        APB1 Prescaler                         | 1
+  *-----------------------------------------------------------------------------
+  *        APB2 Prescaler                         | 1
+  *-----------------------------------------------------------------------------
+  *        PLL_M                                  | 1
+  *-----------------------------------------------------------------------------
+  *        PLL_N                                  | 8
+  *-----------------------------------------------------------------------------
+  *        PLL_P                                  | 7
+  *-----------------------------------------------------------------------------
+  *        PLL_Q                                  | 2
+  *-----------------------------------------------------------------------------
+  *        PLL_R                                  | 2
+  *-----------------------------------------------------------------------------
+  *        PLLSAI1_P                              | NA
+  *-----------------------------------------------------------------------------
+  *        PLLSAI1_Q                              | NA
+  *-----------------------------------------------------------------------------
+  *        PLLSAI1_R                              | NA
+  *-----------------------------------------------------------------------------
+  *        PLLSAI2_P                              | NA
+  *-----------------------------------------------------------------------------
+  *        PLLSAI2_Q                              | NA
+  *-----------------------------------------------------------------------------
+  *        PLLSAI2_R                              | NA
+  *-----------------------------------------------------------------------------
+  *        Require 48MHz for USB OTG FS,          | Disabled
+  *        SDIO and RNG clock                     |
+  *-----------------------------------------------------------------------------
+  *=============================================================================
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2017 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+
+/** @addtogroup CMSIS
+  * @{
+  */
+
+/** @addtogroup stm32l4xx_system
+  * @{
+  */
+
+/** @addtogroup STM32L4xx_System_Private_Includes
+  * @{
+  */
+
+#include "stm32l4xx.h"
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32L4xx_System_Private_TypesDefinitions
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32L4xx_System_Private_Defines
+  * @{
+  */
+
+#if !defined  (HSE_VALUE)
+  #define HSE_VALUE    8000000U  /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+#if !defined  (MSI_VALUE)
+  #define MSI_VALUE    4000000U  /*!< Value of the Internal oscillator in Hz*/
+#endif /* MSI_VALUE */
+
+#if !defined  (HSI_VALUE)
+  #define HSI_VALUE    16000000U /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/* Note: Following vector table addresses must be defined in line with linker
+         configuration. */
+/*!< Uncomment the following line if you need to relocate the vector table
+     anywhere in Flash or Sram, else the vector table is kept at the automatic
+     remap of boot address selected */
+/* #define USER_VECT_TAB_ADDRESS */
+
+#if defined(USER_VECT_TAB_ADDRESS)
+/*!< Uncomment the following line if you need to relocate your vector Table
+     in Sram else user remap will be done in Flash. */
+/* #define VECT_TAB_SRAM */
+
+#if defined(VECT_TAB_SRAM)
+#define VECT_TAB_BASE_ADDRESS   SRAM1_BASE      /*!< Vector Table base address field.
+                                                     This value must be a multiple of 0x200. */
+#define VECT_TAB_OFFSET         0x00000000U     /*!< Vector Table base offset field.
+                                                     This value must be a multiple of 0x200. */
+#else
+#define VECT_TAB_BASE_ADDRESS   FLASH_BASE      /*!< Vector Table base address field.
+                                                     This value must be a multiple of 0x200. */
+#define VECT_TAB_OFFSET         0x00000000U     /*!< Vector Table base offset field.
+                                                     This value must be a multiple of 0x200. */
+#endif /* VECT_TAB_SRAM */
+#endif /* USER_VECT_TAB_ADDRESS */
+
+/******************************************************************************/
+/**
+  * @}
+  */
+
+/** @addtogroup STM32L4xx_System_Private_Macros
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32L4xx_System_Private_Variables
+  * @{
+  */
+  /* The SystemCoreClock variable is updated in three ways:
+      1) by calling CMSIS function SystemCoreClockUpdate()
+      2) by calling HAL API function HAL_RCC_GetHCLKFreq()
+      3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
+         Note: If you use this function to configure the system clock; then there
+               is no need to call the 2 first functions listed above, since SystemCoreClock
+               variable is updated automatically.
+  */
+  uint32_t SystemCoreClock = 4000000U;
+
+  const uint8_t  AHBPrescTable[16] = {0U, 0U, 0U, 0U, 0U, 0U, 0U, 0U, 1U, 2U, 3U, 4U, 6U, 7U, 8U, 9U};
+  const uint8_t  APBPrescTable[8] =  {0U, 0U, 0U, 0U, 1U, 2U, 3U, 4U};
+  const uint32_t MSIRangeTable[12] = {100000U,   200000U,   400000U,   800000U,  1000000U,  2000000U, \
+                                      4000000U, 8000000U, 16000000U, 24000000U, 32000000U, 48000000U};
+/**
+  * @}
+  */
+
+/** @addtogroup STM32L4xx_System_Private_FunctionPrototypes
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32L4xx_System_Private_Functions
+  * @{
+  */
+
+/**
+  * @brief  Setup the microcontroller system.
+  * @retval None
+  */
+
+void SystemInit(void)
+{
+#if defined(USER_VECT_TAB_ADDRESS)
+  /* Configure the Vector Table location -------------------------------------*/
+  SCB->VTOR = VECT_TAB_BASE_ADDRESS | VECT_TAB_OFFSET;
+#endif
+
+  /* FPU settings ------------------------------------------------------------*/
+#if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
+  SCB->CPACR |= ((3UL << 20U)|(3UL << 22U));  /* set CP10 and CP11 Full Access */
+#endif
+}
+
+/**
+  * @brief  Update SystemCoreClock variable according to Clock Register Values.
+  *         The SystemCoreClock variable contains the core clock (HCLK), it can
+  *         be used by the user application to setup the SysTick timer or configure
+  *         other parameters.
+  *
+  * @note   Each time the core clock (HCLK) changes, this function must be called
+  *         to update SystemCoreClock variable value. Otherwise, any configuration
+  *         based on this variable will be incorrect.
+  *
+  * @note   - The system frequency computed by this function is not the real
+  *           frequency in the chip. It is calculated based on the predefined
+  *           constant and the selected clock source:
+  *
+  *           - If SYSCLK source is MSI, SystemCoreClock will contain the MSI_VALUE(*)
+  *
+  *           - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(**)
+  *
+  *           - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(***)
+  *
+  *           - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(***)
+  *             or HSI_VALUE(*) or MSI_VALUE(*) multiplied/divided by the PLL factors.
+  *
+  *         (*) MSI_VALUE is a constant defined in stm32l4xx_hal.h file (default value
+  *             4 MHz) but the real value may vary depending on the variations
+  *             in voltage and temperature.
+  *
+  *         (**) HSI_VALUE is a constant defined in stm32l4xx_hal.h file (default value
+  *              16 MHz) but the real value may vary depending on the variations
+  *              in voltage and temperature.
+  *
+  *         (***) HSE_VALUE is a constant defined in stm32l4xx_hal.h file (default value
+  *              8 MHz), user has to ensure that HSE_VALUE is same as the real
+  *              frequency of the crystal used. Otherwise, this function may
+  *              have wrong result.
+  *
+  *         - The result of this function could be not correct when using fractional
+  *           value for HSE crystal.
+  *
+  * @retval None
+  */
+void SystemCoreClockUpdate(void)
+{
+  uint32_t tmp, msirange, pllvco, pllsource, pllm, pllr;
+
+  /* Get MSI Range frequency--------------------------------------------------*/
+  if ((RCC->CR & RCC_CR_MSIRGSEL) == 0U)
+  { /* MSISRANGE from RCC_CSR applies */
+    msirange = (RCC->CSR & RCC_CSR_MSISRANGE) >> 8U;
+  }
+  else
+  { /* MSIRANGE from RCC_CR applies */
+    msirange = (RCC->CR & RCC_CR_MSIRANGE) >> 4U;
+  }
+  /*MSI frequency range in HZ*/
+  msirange = MSIRangeTable[msirange];
+
+  /* Get SYSCLK source -------------------------------------------------------*/
+  switch (RCC->CFGR & RCC_CFGR_SWS)
+  {
+    case 0x00:  /* MSI used as system clock source */
+      SystemCoreClock = msirange;
+      break;
+
+    case 0x04:  /* HSI used as system clock source */
+      SystemCoreClock = HSI_VALUE;
+      break;
+
+    case 0x08:  /* HSE used as system clock source */
+      SystemCoreClock = HSE_VALUE;
+      break;
+
+    case 0x0C:  /* PLL used as system clock  source */
+      /* PLL_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLN
+         SYSCLK = PLL_VCO / PLLR
+         */
+      pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC);
+      pllm = ((RCC->PLLCFGR & RCC_PLLCFGR_PLLM) >> 4U) + 1U ;
+
+      switch (pllsource)
+      {
+        case 0x02:  /* HSI used as PLL clock source */
+          pllvco = (HSI_VALUE / pllm);
+          break;
+
+        case 0x03:  /* HSE used as PLL clock source */
+          pllvco = (HSE_VALUE / pllm);
+          break;
+
+        default:    /* MSI used as PLL clock source */
+          pllvco = (msirange / pllm);
+          break;
+      }
+      pllvco = pllvco * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 8U);
+      pllr = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> 25U) + 1U) * 2U;
+      SystemCoreClock = pllvco/pllr;
+      break;
+
+    default:
+      SystemCoreClock = msirange;
+      break;
+  }
+  /* Compute HCLK clock frequency --------------------------------------------*/
+  /* Get HCLK prescaler */
+  tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4U)];
+  /* HCLK clock frequency */
+  SystemCoreClock >>= tmp;
+}
+
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/